public abstract class FftModel : IIndexable| Amplitudes | Gets the amplitudes of the spectrum, as a vector of real numbers. | 
| ItemIndex | Gets the complex number at the specified index. | 
| ItemInt32 | Gets the complex number at the specified index. | 
| ItemRange | Extracts a slice from the spectrum. | 
| Length | Gets the length of the Amplitudes and Phases vectors. | 
| Phases | Gets the phases of the spectrum, as a vector of real numbers. | 
| Spectrum | Gets the result of the FFT as a complex vector. | 
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object)  | 
| GetHashCode | Serves as the default hash function. (Inherited from Object)  | 
| GetType | Gets the Type of the current instance. (Inherited from Object)  | 
| ToShortString | Gets a short string describing the kind of FFT and the length of the spectrum. | 
| ToString | Gets a string representation of the FFT. (Overrides ObjectToString)  |